cab078c2a2c5c58d880224a12924b5e5f01e3b44b2e42755a1afb9bebfe3c831

Analysis

max time kernel
149s
max time network
135s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
31-12-2023 06:43

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General

Target

2c10455bda86d931f80239fed605f0c4.exe
Size

217KB
MD5

2c10455bda86d931f80239fed605f0c4
SHA1

991efbb5d15e945f9c2f741d606c2cd9173d5f09
SHA256

cab078c2a2c5c58d880224a12924b5e5f01e3b44b2e42755a1afb9bebfe3c831
SHA512

9fd4813dfeede13156bfbadff791ab37a57c16ab9f3983b1d5877af34165994614ca7d65522094995d9102ec62263fdfc6f38abecb9f8e33e36738c5d2d9c33d
SSDEEP

6144:NAJzqnhxwEa0JyJnx2bLPI0ADVoACLgk:SxWoEawyJ4LALEg

Score

7^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2472	Rrikaa.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Windows\CurrentVersion\Run\TJHTHX1O7X = "C:\\Windows\\Rrikaa.exe"	Rrikaa.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Rrikaa.exe	2c10455bda86d931f80239fed605f0c4.exe
File created	C:\Windows\Tasks\{62C40AA6-4406-467a-A5A5-DFDF1B559B7A}.job	2c10455bda86d931f80239fed605f0c4.exe
File opened for modification	C:\Windows\Tasks\{62C40AA6-4406-467a-A5A5-DFDF1B559B7A}.job	2c10455bda86d931f80239fed605f0c4.exe
File created	C:\Windows\Rrikaa.exe	2c10455bda86d931f80239fed605f0c4.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Internet Explorer\Main	Rrikaa.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Internet Explorer\International	Rrikaa.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe
2472	Rrikaa.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1572 wrote to memory of 2472	1572	2c10455bda86d931f80239fed605f0c4.exe	28
PID 1572 wrote to memory of 2472	1572	2c10455bda86d931f80239fed605f0c4.exe	28
PID 1572 wrote to memory of 2472	1572	2c10455bda86d931f80239fed605f0c4.exe	28
PID 1572 wrote to memory of 2472	1572	2c10455bda86d931f80239fed605f0c4.exe	28
PID 1572 wrote to memory of 2472	1572	2c10455bda86d931f80239fed605f0c4.exe	28
PID 1572 wrote to memory of 2472	1572	2c10455bda86d931f80239fed605f0c4.exe	28
PID 1572 wrote to memory of 2472	1572	2c10455bda86d931f80239fed605f0c4.exe	28

C:\Users\Admin\AppData\Local\Temp\2c10455bda86d931f80239fed605f0c4.exe
"C:\Users\Admin\AppData\Local\Temp\2c10455bda86d931f80239fed605f0c4.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1572
- C:\Windows\Rrikaa.exe
  C:\Windows\Rrikaa.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  PID:2472

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1572-45485-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1572-0-0x0000000000290000-0x00000000002A4000-memory.dmp

Filesize
80KB

Download
memory/1572-1-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1572-8-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2472-45487-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2472-38915-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2472-9-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2472-45486-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2472-45488-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2472-45489-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2472-45490-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2472-45492-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2472-45493-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2472-45497-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2472-45498-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download